Ball pickup device



FIG. 1 is a perspective view of a ball pickup device showing the claimed design;

FIG. 2 is a side view of the ball pickup device shown in FIG. 1;

FIG. 3 is a top view of the ball pickup device shown in FIG. 1; and,

FIG. 4 is a bottom view of the ball pickup device shown in FIG. 1.

Broken lines in the figures show portions of the ball pickup device that form no part of the claimed design. 

CLAIM The ornamental design for a ball pickup device, as shown and described. 